I see it now! The code for the CF8/9 version is in the "lib" folder. Tricky! (Actually it's not that tricky... probably just means I'm a novice at the way Github projects are typically set up.)

Thanks for the reply - it let me know I needed to look a little more closely. Oh, and thanks for the awesome tool! Too often when people share something like that on the Internet, the main thanks they get is clueless people asking silly questions (or at best, clueful people asking insightful questions), which creates more work for the guy who was just trying to do folks a favor. It's great to know that even though cfspreadsheet is out there, you're still keeping this project alive for those of us who need it.

Licensing is one of those things that can appear complex, but is really quite simple once boiled down.

I wrote the following a little while ago, it's slightly out of context, but good enough that I can't be bothered re-writing...

If you want to protect your investment for all users, use GPLv3 or above.

If you want to protect your investment for all users, but are pragmatic about the complexities of the world, use LGPLv3 or above.

If you don't care, use Apache License v2.0 or MIT License.

There are lots of other licenses, but many of them are (rough) variations of MIT or LGPL, with a sprinkling of extra legal waffle that just get in the way of programmers helping each other. Unless you want to contribute to a project using another license, you can ignore them.